Climate Control Unit Rebuid
Thread Starter
Intermediate
Joined: Nov 2009
Posts: 26
Likes: 0
From: Ireland
Climate Control Unit Rebuid
Hello, I think I need to get my climate control unit rebuilt. As soon as I put on the heat, the fan stops and if you turn it back to cold it speeds back up. The window demister fan works intermittently but most of the time not at all. I've been told by my mechanic it needs to be rebuilt but I cannot find anywhere to get it done. It'd be great if someone on here could give me some advice. Thanks, Jon
IHI KING!
Rennlist Member
Rennlist Member
Joined: Aug 2001
Posts: 13,400
Likes: 229
From: Nashua, New Hampshire, USA
Thread Starter
Intermediate
Joined: Nov 2009
Posts: 26
Likes: 0
From: Ireland
Rocket Rob: thanks a lot for that, will check that out. Although somebody in Europe would suit better, should have mentioned that but great.
Darth: Ok will do that, although mine doesn't have a/c.
Basically the issue is that everything works fine as long as the temp control stays at it's coldest, as soon as you start to turn the temp up (or hit demist) within about 3 secs the fans cut out and will only work again when temp is put back to cold.
If anyone has any other ideas as to what's causing this then that'd be great!
Thanks
Darth: Ok will do that, although mine doesn't have a/c.
Basically the issue is that everything works fine as long as the temp control stays at it's coldest, as soon as you start to turn the temp up (or hit demist) within about 3 secs the fans cut out and will only work again when temp is put back to cold.
If anyone has any other ideas as to what's causing this then that'd be great!
Thanks
Registered User
Joined: Oct 2005
Posts: 13,674
Likes: 265
From: Not here
Mine did this when i removed the blower motors from the rear of my car (my car is a turbo so this may not apply) when i put them back in it worked fine. It may have something to do with the resistors not being heated in the blower motor or something.... its a long shot but you may wanna check back there and make sure all is well. If im not mistaken you have just one blower in the engine bay.
IHI KING!
Rennlist Member
Rennlist Member
Joined: Aug 2001
Posts: 13,400
Likes: 229
From: Nashua, New Hampshire, USA
Basically the issue is that everything works fine as long as the temp control stays at it's coldest, as soon as you start to turn the temp up (or hit demist) within about 3 secs the fans cut out and will only work again when temp is put back to cold.
If anyone has any other ideas as to what's causing this then that'd be great!
Thanks
If anyone has any other ideas as to what's causing this then that'd be great!
Thanks
Trending Topics
IHI KING!
Rennlist Member
Rennlist Member
Joined: Aug 2001
Posts: 13,400
Likes: 229
From: Nashua, New Hampshire, USA
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
10 Porsche Colors That Have More Personality Than Most People
Verdad Gallardo
Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod
Verdad Gallardo
10 Reasons I Hate Going to the Porsche Dealership (& the 1 Reason I Stay)
Joe Kucinski
Porsche Shakes Up The Nürburgring Lap Record Table Once Again
Verdad Gallardo
6 Ways the Porsche 911 GT3 S/C Redefines Performance
Joe Kucinski
10 Wildest Homologation Specials Porsche Ever Sold
Verdad Gallardo
Super Rare RUF BTR III Comes Out of Hibernation, Looking For a New Home
Verdad Gallardo
10 Porsche Opinions That Can Start a Fight
Joe Kucinski
One-Off Porsche 911 S/T Takes Inspiration From Famous '70s Race Car
Verdad Gallardo
Thread Starter
Intermediate
Joined: Nov 2009
Posts: 26
Likes: 0
From: Ireland
Rob thats great thanks. I'll have a look at the blower during the week. I thought my mechanic had a hammer tool but he never mentioned any fault codes. Anyway I'll check it out and see what happens. Thanks for the advice, will keep progress posted
And thanks Boeing, yes mine is just C4 SE so no turbo.
And thanks Boeing, yes mine is just C4 SE so no turbo.
Three Wheelin'
Joined: Mar 2003
Posts: 1,402
Likes: 1
From: New Jersey
Otto's in Venice California did mine years ago for I think $325 or so- quick turnaround, no more issues with battery drain/fan running. I'd have to check my records if you need more info (or you can probably find info in a search for Otto's)
Nordschleife Master
Joined: Feb 2007
Posts: 5,095
Likes: 3
From: Cheshire, UK
Sounds like your rear blower is not running at all. The first thing I would check is the fuse in the rear fuse box. If you find it's blown make sure you replace it with a 30 amp fuse (the original 25 amp fuse was replace by a Porsche TSB).
Thread Starter
Intermediate
Joined: Nov 2009
Posts: 26
Likes: 0
From: Ireland
Update
Hi there, just an update on this. Went hunting last night and tracked it down to the fuse. So a very simple fix 
It still does that wheezing thing where you're driving along and its turned off but still blowing away whenever it feels like it, but I can deal with that. So thanks a lot to everyone for their help, made it a lot easier- thank you all.
It still does that wheezing thing where you're driving along and its turned off but still blowing away whenever it feels like it, but I can deal with that. So thanks a lot to everyone for their help, made it a lot easier- thank you all.
